AMINE ABSORPTION CIRCUIT PARAMETERS OPTIMIZATION FOR BIOGAS REFINING FROM СО2 AND H2S

  • A.I. Pyatnichko The Gas Institute of the National Academy of Sciences of Ukraine, Kyiv
  • Yu.V. Ivanov The Gas Institute of the National Academy of Sciences of Ukraine, Kyiv
  • H.V. Zhuk The Gas Institute of the National Academy of Sciences of Ukraine, Kyiv
  • L.R. Onopa The Gas Institute of the National Academy of Sciences of Ukraine, Kyiv
Keywords: biogas, biomethane, carbon dioxide, hydrogen sulfide, absorber, desorber, absorbent

Abstract

Exhaustion of traditional fossil fuels deposits leads to the search for alternative energy sources, such as biogas produced from biological raw material — biomass. Basic components of biogas are biomethane, carbon dioxide and impurities such as hydrogen sulfide and others. It is necessary to remove СО2 and H2S from biogas for obtaining of biomethane — an analogue of the natural gas. Multiple calculations were carried out with software system of technological modeling HYSYS using and an absorption circuit with amine-water absorbent composition: 40 % MDEA (methyl­diethanol­amine) + 10 % MEA (monoethanolamine) + 50 % H2O was offered. It allows cutting down energy costs 1,5–3 times on absorption-desorption process, as compared with aqueous solutions of MEA. It was found following optimal parameters of cleaning municipal solid waste biogas from CO2 and H2S: pressure in absorber 0,26–0,28 MPa, in desorber 0,16–0,18 MPa, temperature of the regenerated amine solution in the absorber inlet is 45 °C. Bibl. 11, Fig. 6, Table 4.

Author Biographies

A.I. Pyatnichko, The Gas Institute of the National Academy of Sciences of Ukraine, Kyiv

Candidate of Technical Sciences

H.V. Zhuk, The Gas Institute of the National Academy of Sciences of Ukraine, Kyiv

Candidate of Technical Sciences

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Published
2015-02-20
How to Cite
Pyatnichko, A., Ivanov, Y., Zhuk, H., & Onopa, L. (2015). AMINE ABSORPTION CIRCUIT PARAMETERS OPTIMIZATION FOR BIOGAS REFINING FROM СО2 AND H2S. Energy Technologies & Resource Saving, (1), 14-21. Retrieved from https://etars-journal.org/index.php/journal/article/view/126

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